Finding the Fourth Proportional to 2,978.04, 4,467.56 and 1,246.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.04 : 4,467.56 = 1,246.80 : x
2. Step 2: Convert to fraction form
   2,978.04/4,467.56 = 1,246.80/x
3. Step 3: Cross multiply
   2,978.04x = 4,467.56 × 1,246.80
4. Step 4: Simplify right side
   2,978.04x = 5,570,153.81
5. Step 5: Solve for x
   x = 5,570,153.81/2,978.04
6. Step 6: Final answer
   x = 1,870.41